Acquired speech impediment as a result of brain damage (aphasia), eg by stroke, cancer, accidents, etc. with disorders of language comprehension, speaking, reading, writing and general communication skills

Motor speech disorders with impairment of the articulation in form of a weakened articulation sharpness, even with changes in respiration and voice (dysarthria / dysarthrophonia) causes include progressive diseases such as Parkinson's, ALS, MS

Swallowing disorders (dysphagia), different cause

Facial palsy (facial paralysis) caused by viruses, bacteria, tumors, etc.

Hearing impairment and cochlear implant (CI)

Communication disorders by decreasing brain function (dementia/Alzheimer's)

Speech disorders (apraxia of speech), eg after stroke

Voice disorders (dysphonia) too high, too low, weak, hoarse and/or less resilient voice of various causes (etiology)

Fluency disorders (stuttering / cluttering)

Laryngeal diseases and/or larynx partial or total removal